The first ammonoids also arose during the Devonian. Related to octopuses and squid, these marine animals survived until the end of the Cretaceous period, 65 million years ago. Plants began ...

At that time, known as the Devonian period, the world was changing dramatically: complex plant ecosystems formed on land, the first woody plants appeared, and the water's edge was becoming a new ...

During this period, novel structures such as tracheids ... Wang Jiashu Artist’s restoration of part of the Early Devonian Mangshan flora, with plant communities of Zosterophyllum baoyangense ...

During this period, novel structures ... history strategies in early land plants remains poorly understood. As a predominant and typical component of Early Devonian floras, Zosterophyllopsida ...